org.bootchart.parser
Class HeaderParser

java.lang.Object
  org.bootchart.parser.HeaderParser

public class HeaderParser
extends Object

HeaderParser parses the header log file, which contains the chart title and basic information about the system, OS release, CPU, etc.

Constructor Summary

HeaderParser()

Method Summary

static int	getNumCPUs(Properties headers) Get the number of CPUs from the system.cpu header property.
static Properties	oldParseLog(BufferedReader reader) Parses the header log file (old version).
static Properties	parseLog(InputStream is) Parses the header log file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HeaderParser

public HeaderParser()

Method Detail

parseLog

public static Properties parseLog(InputStream is)
                           throws IOException

Parses the header log file. The Properties instance should contain at least the following values:

• title
(e.g. "Boot chart for serenity.klika.si (Sun Nov 21 01:48:05 CET 2004)")
• system.uname
(e.g. "Linux 2.6.7 #2 Thu Jul 1 14:25:23 CEST 2004 i686 GNU/Linux")
• system.release
(e.g. "Fedora Core release 3 (Heidelberg)")
• system.cpu
(e.g. "Intel(R) Pentium(R) M processor 1500MHz")
• system.kernel.options
(e.g. "cmdline: ro root=/dev/vg0/root vga=0x318 rhgb")

Parameters:

is - the input stream to read from

Returns:

header properties

Throws:

IOException - if an I/O error occurs

oldParseLog

public static Properties oldParseLog(BufferedReader reader)
                              throws IOException

Parses the header log file (old version).

Parameters:

reader - the reader to read from

Returns:

header properties

Throws:

IOException - if an I/O error occurs

getNumCPUs

public static int getNumCPUs(Properties headers)

Get the number of CPUs from the system.cpu header property.

Parameters:

headers - header properties

Returns:

the number of CPUs